True Precision Barrel Features The True Precision Barrel is machined from 416R stainless steel billet a material prized in precision barrel making for its corrosion resistance and ability to hold tight tolerances through repeated firing. An 11 degree target crown protects the muzzle s rifling from damage while promoting even symmetrical gas release as the bullet exits both of which support tighter groups downrange. The 1:10 left hand twist rate is cut to match proper bullet stabilization for 9mm Luger loads fired through the Glock 17 platform. Because the barrel is a true match grade drop in part it is built to fit the Glock 17 s slide and frame without additional fitting. Threaded 1/2x28 the barrel ships with a thread protector installed letting the owner run it bare for a clean look or remove the protector to add a compensator or suppressor. Beyond the threading True Precision widened and improved the feed ramp compared to the factory Glock design a change specifically intended to improve reliability when feeding hollow point and other defensive ammunition profiles. This finished stainless surface resists the wear and corrosion that can dull a barrel s appearance and performance over time. Precision machined and ready for serious use the True Precision Barrel is available for sale at GrabAGun for Glock 17 owners who want match grade accuracy and reliability. True Precision Barrel Specifications Manufacturer: True Precision Model: Barrel for Glock 17 Caliber: 9mm Material: 416R Stainless Steel Finish: Stainless Twist Rate: 1:10 LH Thread Pitch: 1/2x28 Crown: 11 Degree Target Crown Compatible Hosts: Glock 17 Barrel Length: 4.49 Available At: GrabAGun